2413 search results for "twitter"

Climate Reference Network: package crn 1.0

September 20, 2011
By
Climate Reference Network:  package crn 1.0

I’ve just finished and uploaded another climate data package for R. This one focuses on  CRN the climate Reference Network Here is their home page   The package for now is really simple, but all of the packages  I’m building are getting simpler. In the end ( whenever that is ) I think I’ll end

Read more »

About commercial publishers

September 19, 2011
By
About commercial publishers

Julien Cornebise has pointed out a recent Guardian article. It is about commercial publishers of academic journals, mainly Elsevier, Springer, and Wiley, with a clear stand from its title: “Academic publishers make Murdoch look like a socialist“! The valuable argument therein is that academic publishers make hefty profits (a 40% margin for Elsevier!)

Read more »

rgdal + raster + RCurl = My next package

September 18, 2011
By
rgdal + raster + RCurl = My next package

This package has been a long time in the making.  In the end it’s more of a data package than a functional package, but pulling all the pieces together required me to learn some really cool packages: raster ( which I already knew ) rgdal and RCurl.  I’ll provide a littel bit of an overview

Read more »

Datasets to Practice Your Data Mining

September 16, 2011
By
Datasets to Practice Your Data Mining

There are many datasets available online for free for research use. Some of them are listed below. - The R Datasets Package: There are around 90 datasets available in the package. Most of them are small and easy to feed … Continue reading →

Read more »

R Fork Bomb

September 14, 2011
By
R Fork Bomb

So maybe I’m a strange guy, but I think fork bombs are really funny.  What’s a fork bomb?  The basic premise is that you spawn a process that spawns a process that spawns a process…, ad infinitum. The most beautiful example of a fork bomb, and really one of the most beautiful lines of code

Read more »

Testing and significance

September 12, 2011
By
Testing and significance

Julien Cornebise pointed me to this Guardian article that itself summarises the findings of a Nature Neuroscience article I cannot access. The core of the paper is that a large portion of comparative studies conclude to a significant difference between protocols when one protocol result is significantly different from zero and the other one(s) is(are)

Read more »

Forbush events

September 12, 2011
By
Forbush events

As noted here there is a new paper linking Forbush events with changes in DTR. Simply, during a Forbush event  cosmic rays are modulated ( the flux reaching the earth decreases. The theory goes something like this. If GCRs play a role in cloud formation, then when they decrease you should be able to detect an

Read more »

Visualizing Bayesian Updating

September 10, 2011
By
Visualizing Bayesian Updating

One of the most straightforward examples of how we use Bayes to update our beliefs as we acquire more information can be seen with a simple Bernoulli process. That is, a process which has only two  possible outcomes. Probably the most commonly thought of example is that of a coin toss. The outcome of tossing

Read more »

Le Monde puzzle [#739]

September 9, 2011
By
Le Monde puzzle [#739]

The weekend puzzle in Le Monde this week is again about a clock.  Now, the clock has one hand and x ticks where a lamp is either on or off. The hand moves from tick to tick and each time the lights go on or off depending on whether or not both  neighbours were in

Read more »

I’m Starting a New Position at the University of Virginia

September 8, 2011
By
I’m Starting a New Position at the University of Virginia

I just accepted an offer for a faculty position at the University of Virginia in the Center for Public Health Genomics / Department of Public Health Sciences. Starting in October I will be developing and directing a new centralized bioinformatics core ...

Read more »